Height detection device and stator assembly processing apparatus

Abstract

The application relates to the technical field of motor manufacturing, and discloses a height detection device and a stator assembly processing equipment. The height detection device comprises a rack, a first detection assembly and a second detection assembly. The first detection assembly is arranged on the rack and comprises a first positioning plate, a pressing plate and a first detection unit. The first positioning plate is used for clamping and fixing the stator assembly. The pressing plate is arranged above the first positioning plate and is used for abutting against the connector. The first detection unit is arranged above the pressing plate and is used for acquiring position information of the pressing plate. The second detection assembly is arranged on the rack and comprises a second positioning plate and a second detection unit. The second positioning plate is used for clamping and fixing the stator assembly. The second detection unit is arranged above the second positioning plate and is used for acquiring position information of the second positioning plate. In the vertical direction, the first positioning plate and the second positioning plate can fix the stator assembly at the same height. The technical scheme provided by the application solves the technical problem of low detection precision of the connector height of the stator assembly in the related art.

Description

Technical Field

[0001] This application relates to the field of motor manufacturing technology, and in particular to a height detection device and stator assembly processing equipment. Background Technology

[0002] During the assembly of the stator assembly, a height detection device is needed to measure the vertical height of the connector on the stator assembly to determine whether the connector is properly assembled. In existing technologies, machine vision is generally used to detect whether the connector is properly assembled. However, this method lacks positioning constraints on the stator assembly, resulting in low detection accuracy. Utility Model Content

[0003] The purpose of this application is to provide a height detection device and a stator assembly processing equipment to solve the technical problem of low accuracy in detecting the height of connectors on stator assemblies in related technologies.

[0004] An embodiment of the first aspect of this application provides a height detection device for detecting the installation height of a connector in a stator assembly, comprising: a frame; a first detection component disposed on the frame, the first detection component including a first positioning plate, a pressure plate, and a first detection unit, the first positioning plate being used to hold and fix the stator assembly, the pressure plate being disposed above the first positioning plate for abutting against the connector, and the first detection unit being disposed above the pressure plate for acquiring the position information of the pressure plate; and a second detection component disposed on the frame, the second detection component including a second positioning plate and a second detection unit, the second positioning plate being used to hold and fix the stator assembly, and the second detection unit being disposed above the second positioning plate for acquiring the position information of the second positioning plate; in the vertical direction, the first positioning plate and the second positioning plate can fix the stator assembly at the same height.

[0005] The height detection device provided in this application embodiment can obtain the end face position information of the stator core and the position information of the connector in the same stator assembly by arranging a first detection component and a second detection component on the frame. In this way, the accurate height value of the connector can be obtained by using the end face of the stator core as a reference value, which effectively improves the height detection accuracy of the connector.

[0006] In some embodiments, the first positioning plate and the second positioning plate are provided with through holes for accommodating a portion of the stator core of the stator assembly, so that the outside of the stator core can be held in place on the first positioning plate or the second positioning plate.

[0007] In some embodiments, the first detection unit includes a first photoelectric sensor, and the second detection unit includes a second photoelectric sensor.

[0008] In some embodiments, the height detection device further includes a first mounting plate disposed on a frame, and a first detection component and a second detection component are disposed adjacent to each other on the first mounting plate in a horizontal direction.

[0009] In some embodiments, the pressure plate is mounted on the first mounting plate via a lead screw, and the pressure plate can move in the vertical direction.

[0010] In some embodiments, a first positioning plate is mounted on a first mounting plate via a lead screw, and the first positioning plate can move in a vertical direction; a second positioning plate is mounted on the first mounting plate via a lead screw, and the second positioning plate can move in a vertical direction.

[0011] In some embodiments, the height detection device further includes a first sliding mechanism disposed on the frame, a first mounting plate disposed on the first sliding mechanism, and the first sliding mechanism is used to drive the first mounting plate to move in the vertical direction.

[0012] In some embodiments, the height detection device further includes a second mounting plate and a second sliding mechanism. The second mounting plate is disposed on the first sliding mechanism, and the second sliding mechanism is disposed on the second mounting plate. The first mounting plate is disposed on the second sliding mechanism, and the second sliding mechanism is used to drive the first mounting plate to move in the horizontal direction.

[0013] The second aspect of this application provides a stator assembly processing apparatus for assembling stator assemblies, including the height detection device in the embodiments of the first aspect.

[0014] The stator assembly processing equipment provided in this application embodiment can improve the accuracy of connector height detection in the stator assembly by using the height detection device in the first aspect, thereby improving the product quality of the stator assembly.

[0015] In some embodiments, the stator processing equipment further includes a wire cutting device, a wire clamping device, and a spot welding device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the height detection device provided in the embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the wire-cutting device provided in the embodiments of this application;

[0019] Figure 3 This is a schematic diagram of the wire clamping device provided in the embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the welding device provided in an embodiment of this application.

[0021] 100. Height detection device; 200. Stator assembly; 210. Connector; 300. Wire cutting device; 400. Wire clamping device; 500. Spot welding device;

[0022] 1. Frame; 2. First detection component; 21. First positioning plate; 22. Pressure plate; 23. First detection unit; 3. Second detection component; 31. Second positioning plate; 32. Second detection unit; 4. Through hole; 5. First mounting plate; 6. Lead screw; 7. First sliding mechanism; 8. Second mounting plate; 9. Second sliding mechanism. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly set on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are for descriptive convenience only, not indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the patent. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0025] In this specification, references to "one embodiment," "some embodiments," or simply "embodiment" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. Furthermore, in one or more embodiments, specific features, structures, or characteristics may be combined in any suitable manner.

[0026] EPS (Electric Power Steering) motors are the core power components used in automotive electric power steering systems. They convert electrical energy into mechanical energy through electromagnetic induction, providing auxiliary power for steering. EPS motors mainly consist of a stator assembly, rotor assembly, position sensor, inverter, and other auxiliary functional components. The stator assembly is the core component of the EPS system, primarily responsible for generating a magnetic field and connecting to external circuits via connectors to achieve functions such as power input and signal transmission. A stator assembly generally includes a stator core, stator windings, and connectors. Stator assembly manufacturing typically involves steps such as winding, wire cutting, shaping, connector assembly, connector height detection, resistance welding, and housing assembly. Connector height detection refers to checking the vertical height of the connector after assembly to ensure that the connector size does not exceed the design threshold, avoiding interference during subsequent assembly with the housing.

[0027] In a first aspect, embodiments of this application provide a height detection device 100 for detecting the setting height of the connector 210 in the stator assembly 200.

[0028] Please refer to Figure 1 The height detection device 100 provided in this embodiment includes a frame 1, a first detection component 2, and a second detection component 3. The first detection component 2 is disposed on the frame 1 and includes a first positioning plate 21, a pressure plate 22, and a first detection unit 23. The first positioning plate 21 is used to hold and fix the stator assembly 200. The pressure plate 22 is disposed above the first positioning plate 21 and is used to abut against the connector 210. The first detection unit 23 is disposed above the pressure plate 22 and is used to acquire the position information of the pressure plate 22. The second detection component 3 is disposed on the frame 1 and includes a second positioning plate 31 and a second detection unit 32. The second positioning plate 31 is used to hold and fix the stator assembly 200. The second detection unit 32 is disposed above the second positioning plate 31 and is used to acquire the position information of the second positioning plate 31. Vertically, the first positioning plate 21 and the second positioning plate can fix the stator assembly 200 at the same height.

[0029] The first detection component 2 and the second detection component 3 include, but are not limited to, position sensors and visual inspection cameras. The first detection component 2 can determine the position information of the connector 210 in the stator assembly 200 by detecting the position information of the pressure plate 22, and then obtain the height information of the connector 210; the second detection component 3 can determine the position information of the stator core end face in the stator assembly 200 by detecting the position information of the second positioning plate 31, and then obtain the height information of the stator core end face; wherein, the stator core end face can be used as a reference plane, and by comparing the height information of the connector 210 and the stator core end face, the vertical height value of the connector 210 can be obtained.

[0030] The height detection device 100 includes two detection stations, one for arranging the first detection component 2 and the other for arranging the second detection component 3. During detection, the components contact the stator component 200 in the vertical direction and perform measurements. The same stator component 200 moves between the two detection stations and the detection components to complete the corresponding position information detection.

[0031] The height detection device 100 provided in this application embodiment can obtain the end face position information of the stator core and the position information of the connector 210 in the same stator assembly 200 by arranging the first detection component 2 and the second detection component 3 on the frame 1. In this way, the accurate height value of the connector 210 can be obtained by using the end face of the stator core as a reference value, which effectively improves the height detection accuracy of the connector 210.

[0032] Please refer to Figure 1 In some embodiments, the first positioning plate 21 and the second positioning plate 31 are provided with through holes 4, which are used to accommodate part of the stator core of the stator assembly 200 so that the outside of the stator core can be held on the first positioning plate 21 or the second positioning plate 31.

[0033] The stator core has a stepped surface on its outer wall near the port where connector 210 is located, and the outer diameter of the stator core is smaller closer to the port. The through holes 4 on the first positioning plate 21 and the second positioning plate 31 can be designed according to the outer diameter of the stator core port. This ensures that when the stator assembly 200 is inserted from below the first positioning plate 21 or the second positioning plate 31, the end of the stator assembly 200 and the connector 210 extend through the through holes 4 to the side where the first detection component 2 is located, while the other parts of the stator assembly 200 are stuck on the other side, thereby achieving precise positioning of the stator assembly 200.

[0034] The above design, by improving the structure of the first positioning plate 21 and the second positioning plate 31, effectively improves the positioning effect of the stator assembly 200 in the detection state, thereby helping to improve the height detection accuracy of the connector 210.

[0035] It is understood that in some embodiments, the first positioning plate 21 and the second positioning plate 31 may also be provided with a positioning groove structure on the side facing their respective detection components, so that the position of the stator assembly 200 is fixed by locking the stator assembly 200 in the positioning groove.

[0036] Please refer to Figure 1 In some embodiments, the first detection unit 23 includes a first photoelectric sensor, and the second detection unit 32 includes a second photoelectric sensor.

[0037] Photoelectric sensors include through-beam photoelectric sensors, diffuse reflection photoelectric sensors, etc. By adjusting the detection distance of the sensor, it can be applied to the height detection of different models of connector 210.

[0038] For example, the first photoelectric sensor can be a diffuse reflection photoelectric sensor. During the detection process, the pressure plate 22 abuts against the free end of the connector 210. The first photoelectric sensor emits a light beam. After the light beam reaches the surface of the pressure plate 22, it is reflected back to the receiving end. The system can determine whether the pressure plate 22 is in place based on the change in the intensity of the reflected light, and then determine the position information of the pressure plate 22 and the height information of the connector 210.

[0039] For example, the second photoelectric sensor can be a diffuse reflection photoelectric sensor. During the detection process, the stator assembly 200 is fixed on the second positioning plate 31, and the end face of the stator core is exposed on one side of the second detection assembly 3 and flush with the upper surface of the second positioning plate 31, or the end face of the stator core can abut against the lower surface of the second positioning plate 31. The second photoelectric sensor emits a light beam, and the light beam is reflected back to the receiving end after reaching the surface of the second positioning plate 31. The system can determine the position information of the second positioning plate 31 based on the change information of the reflected light intensity.

[0040] In the above design, the height of connector 210 is detected by photoelectric sensor, which has fast response and high accuracy, and can meet the high-speed processing requirements of automated production line.

[0041] Please refer to Figure 1 In some embodiments, the height detection device 100 further includes a first mounting plate 5 disposed on the frame 1, and the first detection unit 23 and the second detection unit 32 are disposed adjacent to each other on the first mounting plate 5 in the horizontal direction.

[0042] The horizontal and vertical directions are perpendicular. The first detection component 2 and the second detection component 3 can be disposed on the lower vertical surface of the first mounting plate 5.

[0043] With the above design, the first positioning plate 21 and the second positioning plate 31 can be kept at the same height, so the stator assembly 200 can be fixed at the same height using the first positioning plate 21 and the second positioning plate 31. This helps to reduce the difficulty of height detection of connector 210 and further improve the height detection accuracy of connector 210.

[0044] It is understood that in some embodiments, the first detection component 2 and the second detection component 3 can be independently mounted on the rack 1 through multiple mounting structures.

[0045] Please refer to Figure 1 In some embodiments, the pressure plate 22 is mounted on the first mounting plate 5 via a lead screw 6, and the pressure plate 22 can move in the vertical direction.

[0046] The lead screw 6 is vertically mounted on the first mounting plate 5. One end of the lead screw 6 is fixedly connected to the pressure plate 22, and the other end is fixed to the first mounting plate 5 by a fastener. By adjusting the position of the fastener on the lead screw 6, the lowering height of the pressure plate 22 can be adjusted, that is, the position of the pressure plate 22 between the stator assembly 200 and the first mounting plate 5 can be adjusted.

[0047] In the above design, the position of the pressure plate 22 is adjustable, which can be adapted to connectors 210 of various sizes. Thus, the height detection device 100 can be used to detect stator assemblies 200 of various models, effectively improving the versatility of the height detection device 100.

[0048] Please refer to Figure 1 In some embodiments, the first positioning plate 21 is mounted on the first mounting plate 5 via a lead screw 6, and the first positioning plate 21 can move in the vertical direction; and / or, the second positioning plate 31 is mounted on the first mounting plate 5 via a lead screw 6, and the second positioning plate 31 can move in the vertical direction.

[0049] Optionally, in one specific embodiment, the first positioning plate 21 is mounted on the first mounting plate 5 via a lead screw 6, and the first positioning plate 21 can move in the vertical direction; the second positioning plate 31 is mounted on the first mounting plate 5 via a lead screw 6, and the second positioning plate 31 can move in the vertical direction.

[0050] The lead screw 6 is vertically mounted on the first mounting plate 5. One end of the lead screw 6 is fixedly connected to the first positioning plate 21 / second positioning plate 31, and the other end is fixed to the first mounting plate 5 by a fastener. By adjusting the position of the fastener on the lead screw 6, the setting height of the first positioning plate 21 / second positioning plate 31 can be adjusted, that is, the distance between the first positioning plate 21 / second positioning plate 31 and the first mounting plate 5 can be adjusted.

[0051] Optionally, each first positioning plate 21 / second positioning plate 31 may be configured with multiple lead screws 6 to improve the stability of the first positioning plate 21 / second positioning plate 31.

[0052] Understandably, the spacing between the first positioning plate 21 / second positioning plate 31 and the first mounting plate 5 can provide clearance space for the connector 210 or other structures of the stator assembly 200, and provide movement space for the pressure plate 22. In the above design, the positions of the first positioning plate 21 and the second positioning plate 31 are adjustable, which can be adapted to connectors 210 of various sizes. Thus, the height detection device 100 can be used to detect stator assemblies 200 of various models, effectively improving the versatility of the height detection device 100.

[0053] Please refer to Figure 1 In some embodiments, the height detection device 100 further includes a first sliding mechanism 7 disposed on the frame 1, a first mounting plate 5 disposed on the first sliding mechanism 7, and the first sliding mechanism 7 is used to drive the first mounting plate 5 to move in the vertical direction.

[0054] The first sliding mechanism 7 may include a slide rail, a drive motor, or other structures, or it may include a lead screw 6, a slider, or other structures. For example, the first sliding mechanism 7 includes a linear slide rail arranged in the vertical direction, and the first mounting plate 5 is mounted on the slide rail by a slider and can reciprocate along the slide rail in the vertical direction.

[0055] In some cases, the stator assembly 200 is conveyed to the station where the height detection device 100 is located via a conveying device. A working tray or similar structure is also provided at the location where the height detection device 100 is set up. The working tray is used to temporarily store the stator assembly 200 and, in conjunction with the first positioning plate 21 / second positioning plate 31, to fix the position of the stator assembly 200. In the above design, by setting the first sliding mechanism 7, the height of the first detection component 2 and the second detection component 3 in the vertical direction is adjustable. The first detection component 2 and the second detection component 3 can automatically descend to contact the stator assembly 200 to be detected, and can be adapted to various models of stator assemblies 200, effectively improving the versatility of the height detection device 100.

[0056] It is understood that in some embodiments, the first mounting plate 5 may also be directly mounted on the rack 1.

[0057] Please refer to Figure 1 In some embodiments, the height detection device 100 further includes a second mounting plate 8 and a second sliding mechanism 9. The second mounting plate 8 is disposed on the first sliding mechanism 7, the second sliding mechanism 9 is disposed on the second mounting plate 8, and the first mounting plate 5 is disposed on the second sliding mechanism 9. The second sliding mechanism 9 is used to drive the first mounting plate 5 to move in the horizontal direction.

[0058] The second sliding mechanism 9 may include structures such as a slide rail and a drive motor, or it may also include structures such as a lead screw 6 and a slider. For example, the second sliding mechanism 9 includes a linear motor arranged in a horizontal direction, and a first mounting plate 5 is disposed on the sliding component of the linear motor.

[0059] The second mounting plate 8 can be designed to be larger in size to provide more assembly space for the second sliding mechanism 9.

[0060] In the above design, by setting the second sliding mechanism 9, the positions of the first detection component 2 and the second detection component 3 in the horizontal direction are adjustable. The first detection component 2 and the second detection component 3 can be aligned with different stator components 200 by moving horizontally, which helps to improve the ease of use of the height detection device 100.

[0061] Secondly, embodiments of this application provide a stator assembly processing equipment for assembling a stator assembly 200, including the height detection device 100 mentioned in the first aspect.

[0062] The stator assembly processing equipment provided in this application embodiment can improve the height detection accuracy of the connector 210 in the stator assembly 200 by using the height detection device 100 in the first aspect, thereby improving the product quality of the stator assembly 200.

[0063] Please refer to the above as well. Figures 1-4 In some embodiments, the stator assembly processing equipment further includes a wire cutting device 300, a wire clamping device 400, and a spot welding device 500.

[0064] The wire cutting device 300, height detection device 100, wire clamping device 400, and spot welding device 500 are arranged on the production line according to the processing steps of the stator assembly 200. Among them, such as... Figure 2 The wire trimming device 300 shown can be used to trim the wire ends of the coils in the stator assembly 200, ensuring that the wire ends are of uniform size during welding; for example Figure 3 The wire clamping device 400 shown can be used for preliminary processing of connector 210 or winding wire ends; such as Figure 4 The spot welding device 500 shown can be used to weld and fix the connector 210 to the winding wire end to form a low-resistance conductive path.

[0065] The stator assembly processing equipment provided in this application adopts a modular design, with high integration of the whole machine process and low difficulty in production line matching.

[0066] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A height detection device, characterized in that, For detecting the set height of connectors in the stator assembly, including: frame; A first detection component is disposed on the frame. The first detection component includes a first positioning plate, a pressure plate, and a first detection unit. The first positioning plate is used to hold and fix the stator assembly. The pressure plate is disposed above the first positioning plate and is used to abut against the connector. The first detection unit is disposed above the pressure plate and is used to obtain the position information of the pressure plate. The second detection component is disposed on the frame. The second detection component includes a second positioning plate and a second detection unit. The second positioning plate is used to hold and fix the stator assembly. The second detection unit is disposed above the second positioning plate and is used to obtain the position information of the second positioning plate. In the vertical direction, the first positioning plate and the second positioning plate can fix the stator assembly at the same height.

2. The height detection device as described in claim 1, characterized in that, The first positioning plate and the second positioning plate are provided with through holes, which are used to accommodate part of the stator core of the stator assembly, so that the outside of the stator core can be held in place on the first positioning plate or the second positioning plate.

3. The height detection device as described in claim 1, characterized in that, The first detection unit includes a first photoelectric sensor, and the second detection unit includes a second photoelectric sensor.

4. The height detection device as described in any one of claims 1-3, characterized in that, The height detection device further includes a first mounting plate disposed on the frame, and the first detection component and the second detection component are disposed adjacent to each other on the first mounting plate in a horizontal direction.

5. The height detection device as described in claim 4, characterized in that, The pressure plate is mounted on the first mounting plate via a lead screw, and the pressure plate can move along the vertical direction.

6. The height detection device as described in claim 4, characterized in that, The first positioning plate is mounted on the first mounting plate via a lead screw, and the first positioning plate can move along the vertical direction. The second positioning plate is mounted on the first mounting plate via a lead screw, and the second positioning plate can move along the vertical direction.

7. The height detection device as described in claim 4, characterized in that, The height detection device further includes a first sliding mechanism disposed on the frame, the first mounting plate being disposed on the first sliding mechanism, and the first sliding mechanism being used to drive the first mounting plate to move in the vertical direction.

8. The height detection device as described in claim 7, characterized in that, The height detection device further includes a second mounting plate and a second sliding mechanism. The second mounting plate is disposed on the first sliding mechanism, and the second sliding mechanism is disposed on the second mounting plate. The first mounting plate is disposed on the second sliding mechanism, and the second sliding mechanism is used to drive the first mounting plate to move along the horizontal direction.

9. A stator assembly processing equipment, characterized in that, For assembling stator assemblies, including the height detection device as described in any one of claims 1-8.

10. The stator assembly processing equipment as described in claim 9, characterized in that, It also includes wire cutting devices, wire clamping devices, and spot welding devices.

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